"""
核心模块
包含LLM管理、RAG管理、文档处理等核心功能
"""

# 延迟导入避免循环依赖
def get_llm_manager():
    """获取LLM管理器"""
    from .llm_manager import LLMManager
    return LLMManager

def get_rag_manager():
    """获取RAG管理器"""
    from .rag_manager import RAGManager
    return RAGManager

def get_document_processor():
    """获取文档处理器"""
    from .document_processor import DocumentProcessor
    return DocumentProcessor

__all__ = [
    "get_llm_manager",
    "get_rag_manager", 
    "get_document_processor"
]
